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Aurornisyesterday at 2:45 PM2 repliesview on HN

> Has it? CPUs ran much cooler back then.

CPUs now throttle to keep their temp in check. Back then, if the temp got too high they’d be permanently damaged like in the example above.

> Water cooling was harder. But also way less common or necessary.

Water cooling isn’t necessary today, either. The heat pipe heatsinks we have available are so good that you can cool every consumer CPU with a good air cooler. The automatic throttling means it won’t be a disaster if the temp gets high. Water cooling might get a few 100 more MHz during sustained all core workloads but it’s not necessary.


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NikolaNovakyesterday at 4:48 PM

That's just it. My 12700k has maximum turbo of 190 watts. But it has giant air HSF that was trivial to install and I don't even HEAR the thing. No problems! Same with the 300watt gpu.

My Athlon 1100 was barely a third tdp at 60watts, yet was perilous to install, broke one (almost $1k, in 2001 money!), and then on the replacement had a 6500rpm screamer jet engine under my desk sitting on mobo that barely supported it and which could fail and kill my 1core cpu at any point :0

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to11mtmyesterday at 4:56 PM

> CPUs now throttle to keep their temp in check. Back then, if the temp got too high they’d be permanently damaged like in the example above.

Well, it kinda depended on the CPU. And then sometimes the motherboard.

On the Intel side, P3s had a pin on Socket 370 to signal an immediate halt/shutdown. You could probably still damage the CPU, and I'm willing to bet a lot of the cheaper motherboards wouldn't respect it. But plenty did, since S370 needed other changes to support Coppermine anyway.

On the AMD Side, Athlon XPs and Morgan Durons did add a safety mechanism similar to the Pentium 3, but since the Thunderbird and Spitfire Durons did not, it was far far less supported.

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